package com.cloud.netty.websocket;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
import java.time.LocalDateTime;

public class MyTextWebSocketFrameHandler extends SimpleChannelInboundHandler<TextWebSocketFrame> {

    @Override
    protected void channelRead0(ChannelHandlerContext channelHandlerContext, TextWebSocketFrame textWebSocketFrame) throws Exception {
        System.out.println("服务器端收到消息！"+textWebSocketFrame.text());
        // 回复客户端
        channelHandlerContext.channel().writeAndFlush(new TextWebSocketFrame("服务器时间"+ LocalDateTime.now() +
                " " + textWebSocketFrame.text()));
    }

    @Override
    public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
        // id表示唯一的值，LongText时唯一的ShortText 不是唯一的
        System.out.println("handleAdded被调用" + ctx.channel().id().asLongText());
    }

    @Override
    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
        System.out.println("handlerRemoved被调用" + ctx.channel().id().asLongText());
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        System.out.println("exceptionCaught被调用,发生了异常..." + cause.getMessage());
        ctx.close();
    }
}
